<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style type="text/css">
            #show{
                border:none;
                width:298px;
                height:100px;
                position:absolute;
                left:8px;
                top:70px;
                text-align: right;
                font-size:40px;
                background:none;
                color:white;

            }
            #anniu{
                border:none;
                width:72px;
                height:72px;
                position:absolute;
                left:10px;
                top:392px;
                background:none;

            }
        </style>
    </head>
    <body>
        <img src="images/7.jpg" style="width:300px; position:relative;"/>
        <input id="anniu" type="button" onclick="dian1()"/>
        <input id="show" />
        <script type="text/javascript">
            function dian1(){
                show.value=1;
            }
        </script>

    </body>
</html>